1

How can I render a video using FFmpeg or any other tool to get a video with google's vp9 webm codec?

The closest I have got was using openShot to get a vp8 webm video.

4

The easiest method using FFmpeg is to use something like the following:

ffmpeg -i input.mp4 \
       -c:v libvpx-vp9 -crf 30 -b:v 0 \
       -c:a libopus -b:a 96k \
       output.webm

This will output Constant Quality video and is a great choice if you are not fussed about file size. The recommended -crf setting is between 15-31 with lower numbers meaning better quality.

Much more detail is available on the FFmpeg trac site:

0

The vpx-tools package includes VP8 and VP9 encoding/decoding tools.

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